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Magnetic-flux transport by a convecting layer – topological, geometrical and compressible phenomena

Published online by Cambridge University Press:  20 April 2006

Wayne Arter
Wayne Arter
Affiliation:
Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Silver Street, Cambridge CB3 9EW Present address: Theoretical Physics Division, UKAEA/Culham Laboratory, Abingdon, Oxfordshire OX14 3DB, England.
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Abstract

Numerical calculations by Drobyshevski & Yuferev (1974) of the redistribution of magnetic flux by a Bénard layer with cells of square planform have been extended to higher values of electrical conductivity and to other velocity patterns, using a computer code developed for another purpose. Reconnection does not proceed as they supposed, but leads to overall field enhancement, and although the energy is greater at the bottom, there is as much unsigned flux in the upper half as in the lower half of the layer. However, compressible velocity patterns can concentrate flux at their bases.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 132 , July 1983 , pp. 25 - 48
Copyright
© 1983 Cambridge University Press

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